UI logs shown incorrectly

1. create a 2 node cluster with following configuration:
node1: kv,index,n1ql
node2:kv,index.n1ql

2. Start the following test which creates 2 buckets and loads million documents in each bucket as the first step.

python testrunner.py -i <ini file> -c conf/tuq/py-tuq-cbq.conf -p primary_indx_type=GSI,doc-per-day=500,standard_buckets=1,get-cbcollect-info=False,services_init=kv:index:n1ql,use_rest=False,nodes_init=2

Example ini:
[global]
port:8091
username:root
password:couchbase

[servers]
1:vm1
2:vm2

[vm1]
ip:172.23.107.107
services:kv,index,n1ql

[vm2]
ip:172.23.106.244
services:kv,index,n1ql

[membase]
rest_username:Administrator
rest_password:password
[tuq_client]
goroot:/root/n1ql/go
gopath:/root/n1ql/gocode

3.Click on logs tab while data loading is going on, the logs are not shown clearly as shown in attachment.
4.Uploading attachments and logs from the cluster.

5.Checked memory on both nodes, they look good .Also no panic is seen in logs.